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System Administration Guide: Oracle Solaris Zones, Oracle Solaris 10 Containers, and Resource Management     Oracle Solaris 11 Express 11/10
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Part I Oracle Solaris Resource Management

1.  Introduction to Resource Management

2.  Projects and Tasks (Overview)

3.  Administering Projects and Tasks

4.  Extended Accounting (Overview)

5.  Administering Extended Accounting (Tasks)

6.  Resource Controls (Overview)

7.  Administering Resource Controls (Tasks)

8.  Fair Share Scheduler (Overview)

Introduction to the Scheduler

CPU Share Definition

CPU Shares and Process State

CPU Share Versus Utilization

CPU Share Examples

Example 1: Two CPU-Bound Processes in Each Project

Example 2: No Competition Between Projects

Example 3: One Project Unable to Run

FSS Configuration

Projects and Users

CPU Shares Configuration

FSS and Processor Sets

FSS and Processor Sets Examples

Combining FSS With Other Scheduling Classes

Setting the Scheduling Class for the System

Scheduling Class on a System with Zones Installed

Commands Used With FSS

9.  Administering the Fair Share Scheduler (Tasks)

10.  Physical Memory Control Using the Resource Capping Daemon (Overview)

11.  Administering the Resource Capping Daemon (Tasks)

12.  Resource Pools (Overview)

13.  Creating and Administering Resource Pools (Tasks)

14.  Resource Management Configuration Example

Part II Oracle Solaris Zones

15.  Introduction to Oracle Solaris Zones

16.  Non-Global Zone Configuration (Overview)

17.  Planning and Configuring Non-Global Zones (Tasks)

18.  About Installing, Halting, Uninstalling, and Cloning Non-Global Zones (Overview)

19.  Installing, Booting, Halting, Uninstalling, and Cloning Non-Global Zones (Tasks)

20.  Non-Global Zone Login (Overview)

21.  Logging In to Non-Global Zones (Tasks)

22.  Moving and Migrating Non-Global Zones (Tasks)

23.  About Packages on an Oracle Solaris 11 Express System With Zones Installed

24.  Oracle Solaris Zones Administration (Overview)

25.  Administering Oracle Solaris Zones (Tasks)

26.  Troubleshooting Miscellaneous Oracle Solaris Zones Problems

Part III Oracle Solaris 10 Zones

27.  Introduction to Oracle Solaris 10 Zones

28.  Assessing an Oracle Solaris 10 System and Creating an Archive

29.  (Optional) Migrating an Oracle Solaris 10 native Non-Global Zone Into an Oracle Solaris 10 Container

30.  Configuring the solaris10 Branded Zone

31.  Installing the solaris10 Branded Zone

32.  Booting a Zone and Zone Migration

33.  solaris10 Branded Zone Login and Post-Installation Configuration



CPU Share Definition

The term “share” is used to define a portion of the system's CPU resources that is allocated to a project. If you assign a greater number of CPU shares to a project, relative to other projects, the project receives more CPU resources from the fair share scheduler.

CPU shares are not equivalent to percentages of CPU resources. Shares are used to define the relative importance of workloads in relation to other workloads. When you assign CPU shares to a project, your primary concern is not the number of shares the project has. Knowing how many shares the project has in comparison with other projects is more important. You must also take into account how many of those other projects will be competing with it for CPU resources.

Note - Processes in projects with zero shares always run at the lowest system priority (0). These processes only run when projects with nonzero shares are not using CPU resources.